Woodworking machine



May 13 1924 Re; 15,837

M. HUTCHINSON WOODWORKI MACHINE Original Filed Jan, 1918 45 Sheets-Sheet'1' g inlml/ ""Liimimm O .Y .AL'n'll-Imlllllllllllll d.

wnlnnumn Vay 13 1924..

M. HUTCHINSON WOODWORKING MACHINE Original Filed'Jan. 5 1918 5Sheets-Sheet 2 Re. 15,837 M. HUTCHNSON wooljwoRxlNG MACHINE May 13,1924.-

Original Filed Jan. 5 19718 5 Sheets-Sheet C5 May'la, 1924. Re. 15,837M. HUTCHINSON f WOODWORKING MACHINE origina; Filed gan. 5. 1918 5sheets-sheet 4 May 13 1924.

M. HUTCHINSON NOODWORKlNG MACHINE Original Filed Jun. :3 1918 5ShQQtS-Snc-et Q nucwtolz MJ,

named 'May 13, 1924.

UNITED STATES- PATENT oFFlci-z.

WOODWORKING MACHINE.

Original In. 1,369,744, date'clebmary 22, 1921, YSerial No. 210,470, medJanuary 5, 1918. Application for reissue Med April 3, 1828. Serial No.549,303.

To all whom it may concer-n.l Be it known that I, MAoKrNTosH HUTCH-INsoN, a subject of the Kin Britain, formerly residing atgforonto, inthe Province of Ontario, Canada, and now residing at. Philadel vhia,county of Philadelphia, State of ennsylva-nia, have invented certain ne7and useful Improvements in W'oodworking Machines; and I do l'declare thefollowin.- to be a full, clear, and exact description o the invention,such as will enable others skilled in the art to which it appertains tomake and use the same, reference being' had to the accomlpanyingdrawings, and to the letters and gures of reference marked thereon,which i form a part of this specification.

This invention relates to improvements in sawing machines of the generaltype disclosed in my U. S. Letters Patent No. 1,014,708, wherein a motordriven saw is supported by an upright post or standard in such mannerthat it can be adjusted forwardly and rearwardly and positioned indifferent vertical planes radiating from a common axis in' order thatthe machine may be applied to mitering, ,cross-.cutting dado-` ing andkindred operations.

The principal objects of the present invention are to enhance therigidity, compactness and facility of adjustment and operation of amachine of the type referred to; and also to enable the use ofthe sawdriving motor for the operation of some device collaterally useful inthe particular Work at hand, such for example as a jointer, without thenecessity of removing the motor from its support or disturbing itsoperative relation to the saw.

Vith the above objects in View the invention consists of certainfeatures of structure and combination, involving the ele# ments forsupporting the motor and the saw from. the standard or pedestal, andwhich will beset forth in detail as the description proceeds.

An embodiment of the invention is disclosed in the accompanyingdrawings,- wherein:

Figure 1 is a of Great.

-tion of a screw shaft.

side perspective view ofy a sawing machine, in which the features of theinvention are incorporated;

Figure 2 is a front perspective View of the machine; t

Figure 3 is a side elevation on a somewhat larger scale;

Figure 4 is a plan view;

Fi ure 5 is a detail front elevation showing tie adjusting mechanism forthe Work table;

Figure 6 is a. detail view, partly in section and partly in sideelevation, showing the mounting of the pivotally adjusted supportedbracket for the motor and saw.

Similar characters of reference designate, corresponding partsthroughout the several views.

The'support of machine consists eentially of an upright standard orVpedestal 1 suitably stayed at its lower end relatively to the door andfor this purpose preferablyl provided with a supporting base 2 ofsuiiicient Width and cxtent to insure stability.

The stock upon which the saw 'operates is held on a table 4: Whoseelevation relative to the saw may be adjusted to regulate the depth ofthe cut. In the construction shown and preferred the standard 1 isprovided with a forwardly, projecting bracket l5 terminating in a crossbeam 6 (Fig. 5) which, at its ends, is formed with vertical sleeves ,7;I and the table 4 is se,-v enred to a. pair of pillars 8 which areslidably mounted in the respective Vsleeves 7 and arefconnected at!"their lower ends by a cross bar 9. The adjustment of the elevation ofthe table is effected by the rota- 10 which is threaded through the bar9 and has a swivel mounting in a suitable bearing formed with or securedto the beam 6. The stem ,10 is operated by a hand Wheel 11, preferablythrough the agency ofmiter gears 12.

In certain operations it may be found desirable to vary the angle of theWork relatively to the saw and for this purpose the table 4'is pivotallyadjustable about a horizontal or transverse axis, being connected bypivot .pins 13 to the upper ends all of the elements of the f Srl v 13project by the standard 1.

.and for such of the pillars 8. In order- 4to secure the table in anyposition to which it may be adjusted ,about its pivotal center 13 it isprovided witlh Vcurved bars 14, concentricr to said center andhaving-slots 15.` The bars 14 are engaged by clamp heads 16 which areformed With suitable hand grips and have Shanks passing through theslots 15 and threaded in the pillars 8. When the clamp heads 16 are baked off the table` 4 may be freely adjuste into any desired positionabout its pivotal center; and wihen the adjustmentlias been made saidheads are tightened against the bars 14 and are thereby effective tohold the table against displacement. f A

The table is also preferably adjustable, in a direction :tore and aft ofthemachino purpose said table is provided with runners 4a which areslidably fitteds to bars 14a extending between and secured to the upperends of each curved bar 14. The pivot stems 13 are fitted centrally inthe bars. 14"Jl and the runners 4I^L have longitudinal slots 4"4 throughwhich the stems Said stems are provided with clamp heads 13L which areformed with suitable hand grips and may lie-tightened against therunners 4 to fix the table against sliding movement and in any desiredposition within its range oi fore and aft adjustment.

For the support of the Ysaw 17 and its transverse shaft 18, as also ofthe motor 19 for operating the saw, a pair of beams 2O is provided whichin turn are supported 'The saw shaft 18 is Journaled in bea-rings 21having elements which are formed as parts of orsecurcd to a cross head22. The cross-head 22 is formed ivithy-sockets`23 in which the frontends of the "beams 20 are Ifitted; and said cross head and beams areheld relatively rigid by setl screws 24 threaded tlirou h ysaid socketand engaging said beams. Tic

cross head 22 is also provided with a handle Q5 by which the "sa-W maybe advanced or retracted relatively to the work.

In order to vary the angle of the saw relatively to the work the beams20 are supported by a pivotally mounted element and in order that the.saw may be pro jccted or retracted relatively to the work the beams areslidable on their supporting element.- in the direction of their lengthand are disposed tangentially of the pivot of said element.

The supporting element for the beams LH wonsisl of a horizontal bracketQG -provided with a front pair ofvguide sleeves 2T and a rear pair ofguide sleeves 28. The beams are slidablytitted in said sleeves which, inorder to facilitate the sliding movement of the beams in eitherdirection are provided with pulleys 29 on which the Y vided with beamsrest. said pulleys being preferably mounted with roller bearings. Thepulleys are j'ournaled in the bracket at the base of the sleeves, asshown, and thus .relieve the sleeves of some of the strain of the beams.The mbtor 19 is provided with a base 30 which has depending dowel pins31 engaging in recesses formed in the beams; and the sleeves 27 and 28are formed along their upper sides with slots 32 which extend from endto end of said sleeves andthrough which the pins 3l may move inconnection with the sliding of the beams, said slots thus permittingthel motor to be moved in either direction past the sleeves. lVhen thesaw is retracted its rearward movement is limited by the engagement ofthe cross head 22 or, more strictly, of the sockets 23 of said crosshead 27. The sleeves 27 and 28 are somewhat widely spaced and thereforeprovide support forthe. beams at two distantly located points.v thearrangement thus insuring stability. The relatively wide Separation ofthe sleeves 27 and 28 is not permitted to interfere'with the compaotnessof themachine since an amply sufficient range of projectiouof the saw isprovided for with beams of the=usual length by the slotting of thesleeves 2,7 and 28 which enables the motor -to be advanced into aposition of immediate adjacency to the front of the machine. Y

The bracketpQG is formed atI a suitable point, preferably between thefront sleeves.' 27, with a vertical ably fitted upon a pivot post 34.The post 34 .constitutes the axis about which the saw may be turned tovary its angle relatively to the work.

vIn the preferred construct-ion the post 34 is carried by an uprightfrom the outer end of a horizontalV ever-hanging arm 38 which is rigidlymounted upon the upper end of the standard 1, the post 34 being locatedat one sido of said standard.

The bracket 26 may be secured in any desired position as indicated byascale 36 provided upon the i m 38 in concentric relation to thecollar33. There are certain prescribed positionsin which the saw must beplaced for certain opera-tions of fre-` quent.: recurrence; and in orderthat the bracket 26 mav be quickly adjusted to any of these prescribedpositions and positively` secured therein, it is preferred to provide 1naluga latch pin- 35 which is mounted 35 projecting from thc collar 33and is engageable, selectively, in recesses 35b formed in the arm '38along a circle concentric to the collar 33. For holding the bracket 2 inpositions intermediatev the prescribed ones as determined b v thelocation of the 1ecesses 35". the collar 33 is preferably proa. setscrew 37 which may be against the front .sleeves` collar 33 which isrotat?vv` tightened against the post 34, thereby to frxctionally'bindsaid collar against said useful in the particular work at hand. Thus,

a 'ointer 43 'of any suitable chnstruction and illustration merelyconventionally in the drawin s is shown as mounted upon a horizontalvracket 44 which is secured to the standard 1, said jointer being locatedat the side of said standard opposite the table v4 and having itsoperating` shaft-"45 rovided with a pulley 46. lVhen it` is desired tooperate the jointer thebracket 26 is turned about its axis 34, the beamsswinging with said bracket to a` position wherein the pulley alines withthe pulley 46 at which time the belt 41 is disconnected from the pulley42 and en. gaged over the pulley 4 By providing 'the overhanging arm 38for the support ofthe bracket 26 an ad vantage is secured in that, whensaid bracket is, for some special work, e. g., ripping, positioned at aright angle to its normal position shown in Figure 2 greater space isallowed between the saw and the post, thereby enabling the saw to workon wider boards.

' Having fully described my invention, I claim:

1. In a. machine of the type set lforth, an upright standard ahorizontal bracket supported at the upper end of said standard forpivotal movement about a vertical axis and relatively to the standard,said bracket having front andl rear pairs of sleeves, a )air of beamsfitted in said sleeves for slicing movement in the direction of theirlength and disposed 'tangentially of the pivot of said. bracket, a crosshead fitted on the front ends of said beams, a. transverse saw carryinshaft, bearings for said shaft 'associat with said cross head, a motorsupported from the rear ends of said beams and gearing between Saidmotor and the saw carrying shaft. y

2. In a machine of the type set forth.l an upright standard, ahorizontal bracket supported at the upper end of smid standard forpivotal movement about a vertical axis, said bracket having front andrear pairs of sleeves, a air of beams fitted in said sleeves for sli ingmovement in the direction of their length and disposed tangentially ofthe pivot of said bracket, said sleeves being provided withpulleysjournaled in the bracket at the base of the sleeves Iand on whichsaid beams rest, a cross head tted onthe front ends of said 'betweensaid motor and the beams, 4a transverse saw carrying shaf bearingsforsaid'shaft associated with sai cross h ad, a motor supported from therear ends o said beams and gearing between said motor and the sawcarrying shaft.

3. In a machine of the type set forth, an upright`v standard, ahorizontal bracket supported at the upper end of said standard forpivotal movement about a vertical axis, said bracket having front andrear pairs of sleeves, a pair oflbeams. fitted in said sleeves forsliding movement in the direction of their length and disposedvtangentially of the pivot of said bracket,l a cross head fitted on thefront ends of said beams, a transverse saw carrying shaft, bearingsIforsaid shaft associated with said cross head, a motor having its baseprovided with dowel pins fitted in said beams, the sleeves of the rearpair having slots through which said dowel pins may move in connectionwith the sliding movement of said beams and gearing saw carrying shaft.

4. In a machine of the type set forth, 'an upright standard, ahorizontal arm mounted in overhangin relation upon the up r end of saidstan ard, a horizontal brackt pivotally mounted upon the outer end ofsaid arm for movement about a vertical axis parallelto said standard,said bracket having front and rear sleeves a air of beams itted in saidsleeves for slidingv movement in the direction of their length and disosed tangentially of the pivot o said brac et, a cross head fitted onthe lfront ends of said beams, a transverse saw carrying shaft, bearingsfor said shaft associated with said cross head, avmotor supported fromthe rear 'ends of said bea-urs and gearin between said motor and the`sawcarrying s aft.

5. In a machine of the type set forth, an upright standard, a horizontalarm mounted in overhanging relation upon the upper end of said standard,a horizontal bracket pivota-lly mounted upon said arm for movement abouta vertical axis parallel te said standard, a transverse saw carr in asupport for said shaft slidab y ltted to said bracket for movement inthe direction of its length, and disposed tangentially of the pivot ofsaid bracket, said shaft being mounted at the front end of said su port,a motor mounted at the rear end o said support and gearing between saidmotor and said shaft.

6. In a machine of the type set forth, the combination of a motor, aslidable beam element carrying a tool-shaft, the ,motor and vbeamelement being mounted for pivotal movement about a vertical axis, asecond tool carrying shaft supported independently of the slidable beamelement, and means adapted for operatively connecting said motor withsaid tool carrying shafts.

shaft,

y "JIn a meohinev of 'he type setforth, an :uptight standard, ahorizontal bracket suprtod at-the upper end of the standard for ivotalmovement about a vertical axis, a slidable beam element carrying a motorat one end and a'transversely extending saw- Shaft at the other end,gearing between said motor and saw carrying shaft, and a Worksupportingdevice positioned at one side of the upright standard and provided withan 3' operating shaft having a pulley positioned to receive a powertransmission means-ex Vbracket isturiied on its axis to bring `'thetending from. the motor shaft when the motor shaftiopposite theoperating shaftl of said Work-supporting device.

A8. lIn a machine of the type set forth, the

combination of a motor, a slidable carriage :Llportingaidmotor andprovided with a fonezend, means upon which said carriage is rotatablymounted, a se@ ond tool carrying shaft supported independent-ly of theslidable carriage, and means adapted for operatively connecting saidmotor with said tool-carrying shafts.

9. In a machine of the type set forth, the combination of a motor, aslidahle carriage supporting said motor and provided with a tool shaftat one end, means upon which said carriage is rotatably mounted, asecond tool carrying shaft supported independently of the slidablecarriage, and

means adapted in one arrangement to conneet the motor with thetool-shaft onJ the carriage Yand in another arrangement to connect themotor with the other tool-shaft. Signed at Philadelphia, in the countyof Philadelphia, State of Pennsylvania, this 31 day of March, 1922. yMACKINTOSH HUTCHINSON.

